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Fri, 07 Nov 2025 03:15:41 -0800 (PST) Date: Fri, 07 Nov 2025 03:15:41 -0800 In-Reply-To: <690d9fd4.a70a0220.22f260.0022.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <690dd4dd.a70a0220.22f260.003e.GAE@google.com> Subject: Forwarded: Re: [syzbot] [jfs?] BUG: unable to handle kernel paging request in diUpdatePMap From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com. *** Subject: Re: [syzbot] [jfs?] BUG: unable to handle kernel paging request in= diUpdatePMap Author: yun.zhou@windriver.com #syz test diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c index 871cf4fb3636..0d6c40e7e551 100644 --- a/fs/jfs/jfs_metapage.c +++ b/fs/jfs/jfs_metapage.c @@ -270,6 +270,7 @@ static inline struct metapage *alloc_metapage(gfp_t=20 gfp_mask) =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 mp->clsn =3D 0; =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 mp->log =3D NULL; =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 init_waitqueue_hea= d(&mp->wait); +=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0INIT_LIST_HEAD(&mp-= >synclist); =C2=A0 =C2=A0 =C2=A0 =C2=A0 } =C2=A0 =C2=A0 =C2=A0 =C2=A0 return mp; =C2=A0} @@ -379,7 +380,7 @@ static void remove_from_logsync(struct metapage *mp) =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 mp->lsn =3D 0; =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 mp->clsn =3D 0; =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 log->count--; -=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0list_del(&mp->syncl= ist); +=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0list_del_init(&mp->= synclist); =C2=A0 =C2=A0 =C2=A0 =C2=A0 } =C2=A0 =C2=A0 =C2=A0 =C2=A0 LOGSYNC_UNLOCK(log, flags); =C2=A0} diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c index 7840a03e5bcb..a5a5bc0a266d 100644 --- a/fs/jfs/jfs_txnmgr.c +++ b/fs/jfs/jfs_txnmgr.c @@ -275,6 +275,7 @@ int txInit(void) =C2=A0 =C2=A0 =C2=A0 =C2=A0 for (k =3D 0; k < nTxBlock; k++) { =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 init_waitqueue_hea= d(&TxBlock[k].gcwait); =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 init_waitqueue_hea= d(&TxBlock[k].waitor); +=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0INIT_LIST_HEAD(&TxB= lock[k].synclist); =C2=A0 =C2=A0 =C2=A0 =C2=A0 } =C2=A0 =C2=A0 =C2=A0 =C2=A0 for (k =3D 1; k < nTxBlock - 1; k++) { @@ -974,7 +975,7 @@ static void txUnlock(struct tblock * tblk) =C2=A0 =C2=A0 =C2=A0 =C2=A0 if (tblk->lsn) { =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 LOGSYNC_LOCK(log, = flags); =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 log->count--; -=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0list_del(&tblk->syn= clist); +=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0list_del_init(&tblk= ->synclist); =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 LOGSYNC_UNLOCK(log= , flags); =C2=A0 =C2=A0 =C2=A0 =C2=A0 } =C2=A0}